The advantage of using the interquartile range versus the range as a measure of variation is:
A) it is easier to compute.
B) it utilizes all the data in its computation.
C) it gives a value that is closer to the true variation.
D) it is less affected by extremes in the data.

Question

Quizplus · Accepted Answer

The interquartile range (IQR) is less affected by extremes in the data because it focuses on the middle 50% of the data, ignoring outliers and extreme values that can skew the range.

The Advantage of Using the Interquartile Range Versus the Range